Potential implications of acoustic stimuli as a non-physical barrier to silver carp and bighead carp

K. A. Murchy, A. R. Cupp, J. J. Amberg, B. J. Vetter, K. T. Fredricks, M. P. Gaikowski, Allen Mensinger

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

The effectiveness of an acoustic barrier to deter the movement of silver carp, Hypophthalmichthys molitrix (Valenciennes) and bighead carp, H. nobilis (Richardson) was evaluated. A pond (10 m × 5 m × 1.2 m) was divided in half by a concrete-block barrier with a channel (1 m across) allowing fish access to each side. Underwater speakers were placed on each side of the barrier opening, and an outboard motor noise (broadband sound; 0.06–10 kHz) was broadcast to repel carp that approached within 1 m of the channel. Broadband sound was effective at reducing the number of successful crossings in schools of silver carp, bighead carp and a combined school. Repulsion rates were 82.5% (silver carp), 93.7% (bighead carp) and 90.5% (combined). This study demonstrates that broadband sound is effective in deterring carp and could be used as a deterrent in an integrated pest management system.

Original languageEnglish (US)
Pages (from-to)208-216
Number of pages9
JournalFisheries Management and Ecology
Volume24
Issue number3
DOIs
StatePublished - Jun 2017

Bibliographical note

Publisher Copyright:
© 2017 John Wiley & Sons Ltd

Keywords

  • Hypophthalmichthys molitrix
  • Hypophthalmichthys nobilis
  • behaviour
  • invasive species
  • management
  • sound

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